south korea responding to recent actions by china to expand its air to zone defense in the east china sea. all of this is sparking concerns over the beginning of a broader conflict in that region. >>> the obama administration is making a push to get young, healthy americans to sign up for obama care but as the numbers are very slow to pick up, the architect of obama care told our own chris wallace today, it's a lack of promotion, not the botched rollout that is to blame for low enrollment. >> no one has launched a big pr campaign to get these people signed up because of the problems with the federal website. we are about to launch a big pr campaign and that, i think, is going to persuade a lot of people to sign up. >> the white house may not have started its latest pr campaign but state exchanges are certainly looking to attract younger demos using racy ads like this one with internet means like this one like hey, girl, and cutouts of actors like ryan gosling. still, almost half of millennials say they are not going to sign up. joining me is a columnist for the washington times, charl